Process for separating cream from milk.



R. W. PADDEN.

PROCESS FOR. SEPARATING'GREAM FROM MILK.

APPLICATION FILED AUG. 12,1905.

Patented Dec. 22, 1908.

-3 is a diagrammatic view of a mo'dlfied process by which an electrical current may ment of the particles of milk during the pasration of the cream than is obtained bythe Bonner w. PADDEN, OF KANSAS CITY, MISSOURI, ASSIGNOR TO EFFINGHAM, KANSAS.

ISADORE EBERT, or

rnocnss FOR snrena'rme CREAM FROM MiLK.

Application filed August 12,

To all whom it may concern:

Be it known that I, ROBERT W. PADDEN, a citizen' of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have. invented certain new and useful Improvements in Processes for Separating Cream from Milk, of which the follow in is a specification. y invention relates to improvements in rocesses for electrically separating cream rom milk. r

The object of my invention is to provide a efliliitilized for quickly separating cream from m My invention provides a process consisting 1n assing an e cctric current through the mi k to be treated, the passage of the current ca liliingthe separation of the cream from the -My invention provides further the process consisting in passing a current of electrlclty through a stream of flowing milk, the movesage of the electrical current therethrough facilitating the separation of the cream therefrom. 3

My invention provides further a process in which the current of electricity in the form of-a series of impulses is discharged through the The invention provides further the utilizing of an alternatmg current for treating the milk, such a current effecting a quicker sepause of currents through the milk.

1n the accompanying drawings illustrative of my invention, Figure 1. is a perspective passing one direction specification or Letters Retent- Patented Dec. 22, 1908.

1905. Seria1No.273,9 49.

a downwardly inclined tube, the up er vend of which is connected with the vessdl land the lower end of which is disposed so as' to discharge upon one of two electrodes comprising each a vertical electrical conducting member 3, each having a plurality of lateral arms 4 of conducting material, preferably trough-shaped devices the devices on one member bein disposed one above the other and dispose also alternatelybetween the devices or arms {4 of the opposite member.- The milk passin from the vessel 1through' the outlet 2 will all upon the upper arm 4 of one member 3 and will fall from said arm upon the upper arm 4 of the opposite memher 3, and so on, passing alternately from one armof one electrode to the next lower arm of the opposite electrode, and finally falling into a receptacle 5 disposed below the members .3 and arms 4. If, during the passage of the milk downwardly by gravityfrom one arm4 to the other, an electric current ispassed through the milk from one set of. arms to the -other,=a rapid separation of the cream from the milk will be obtained, the rapidity of such separation depending upon the character of the electriccurrent employed. 'Iha've found that the best efiects are produced with the use of an alternating current of high potential such av current being more eflective for separating the cream than is obtained by the use of an automatically broken current flowing in one direction;' A uni-direction current may be employed however, with considerable suc-' cess, and in Fig. 3 I have illustrated amapparatus employing suchv a current. For producing the alternating currents I prefer to emplo an induction coil in connection-with a con enser and a battery I view of an apparatus for carrying my process -Eigs. 1 and 2 illustrate an apparatus eminto effect. Fig. 2 is a diagrammat c view of the form of my invention shown in Fi 1.

form of apparatus for carrying my invention into effect m which an automatically broken direct current is employed. Fig. 4'is a diagrammatic view showing an apparatus in which an alternating generator 1s connected in series with the electrodes which receive the milk thereon.

Similar characters ofreference denote similar parts. Y I a Referringto Figs. 1 and 2',1 denotes a vessel for containing the milk treated, provided with an outlet 2, comprising preferably poles of a condenser 13 are connecte ploying an induction coil 12, the primary winding of which is connected by conductors 14 and 24 with the armature spring 15 and battery 7. A conductor 22 connects the bat-' tery 7 and contact screw 18. The opposite I with the conductors 14 and 24. The secondary winding 12 is connected by conductors-28 and 30 with the electrodes 3. In carrying out this form-of my invention the milk is oured into the vessel 1 and passes therefrom by the outlet 2 upon the arms 4,

falling consecutively from one to the other,

and from said arms into the receptacle 5. At this time the battery 7 connected to the pmthe primary circuit.

mary Winding 23 of the induction coil causes a current to pass through said winding, thus magnetizing the core 17 which attracts the armature 16, thus drawing the s ring 15 away from the contact screw 18 and reaking As soon as the said circuit is broken, the core 17 being de-magnetized permits the spring 15 to be moved by its normal tension againstthe screw 18, thus again closing the primary circuit; The primary circuit being thus automatically rapidly opened and closed will, in the well known manner, cause alternating currents to be generated in the secondary circuit of which the winding 12 is a part. The alternating currents passing through the milk falling upon the arms 4-and'forming partof the secondary-circuit, will cause a separation of the particles of cream from the milk, and the cream being lighter than the milk, will collect upon the surface of the milk in the receptacle,

5, from which it may-be. readily removed by sklmmlng. The operation Qfseparating the cream from the milk may be made contimv cm by keeping a supply of milk constantly in the vessel 1.

- Fig. 3 illustrates-a-means of interrupting a" arms 4 through the milk, thence by means of.

the adjacent member 3, conductor 38, helix 34, conductor 35, screw 18, spring 15 and conductor 36, back to the battery 7.

Fig. 4 illustrates an apparatus in which an alternating current generator 40 is connected 1 milk consisting in passing a series of electrical impulses through the milk.

2. The process of separating cream from milk consisting in passing an alternating electric current through the milk.

3. The process of separating cream from milk consisting in passing a series of electric impulses through a flowing stream of milk.

.4. The process of separating cream from milk consisting in passing an alternating current through a flowing stream of milk.

5. The process .of separating cream from milk consisting in causing milk to flow from one to another of two electrodes located in an electric circuit and simultaneously passing an alternating current between said electrodes; I

6. The process of separating cream from milk consisting in causing milk to flow from one to another of two electrodes located in an electric circuit and simultaneously generating in said circuit a series of electrical 'im-- pulses.

Intestimony whereof I aifix my signature in presence of two witnesses.

' ROBERT W..PADDEN. -Witnesses: WARREN D. HoUsE, HENRY F. Ross. 

